A vehicle disk player is disclosed in which a disk is inserted through a disk inserting opening, the disk is fixedly mounted on a turn table by a clamper arm when conveyed to a predetermined position in the player, the turn table is rotated for reproduction of data recorded in the disk, and reproducing means including the clamper arm and turn table are supported in a floating manner. The player is provided with a centering mechanism for positioning said disk at the middle of the disk inserting opening with centering pins. The centering pins are arranged out of the range of vibration of the disk which is fixedly mounted on said turn table supported in a floating manner.